Visually lossless compression of color images

Ronald S. Gentile; Jan P. Allebach; Eric Walowit

doi:10.1117/12.19963

1 August 1990 Visually lossless compression of color images

Ronald S. Gentile, Jan P. Allebach, Eric Walowit

Proceedings Volume 1258, Image Communications and Workstations; (1990) https://doi.org/10.1117/12.19963
Event: Electronic Imaging: Advanced Devices and Systems, 1990, Santa Clara, CA, United States

Abstract

A technique is presented for intraframe color image data compression which produces visually lossless imagery compared to the original. This algorithm consists of a color vector quantizer operating in the Luv uniform color space, followed by a reversible codeword assignment strategy that uses prediction to achieve conditional entropy type bit rates. Unlike differential pulse code modulation (DPCM), predicted values are used for codebook selection instead of the computation and coding of a residual signal.

Citation Download Citation

Ronald S. Gentile, Jan P. Allebach, and Eric Walowit "Visually lossless compression of color images", Proc. SPIE 1258, Image Communications and Workstations, (1 August 1990); https://doi.org/10.1117/12.19963

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